中板地

With a spring installed inside table, you can move it up and down, and it can adjust the pressure, swing it before and after by eccentric wheel and pulley. The swing margin is about 12 degrees. The platform was installed in the L-plate and can correct center to ensure die non-deformation and roundness in polishing process.

工作台里面安装弹簧一根，可以上下移动，并可任意调整压力，利用皮带轮和偏心轮带动，使前后摆动，摆动幅度约12度，而工作台被安装在 L 型拖板上可以任意地对中心，确保在抛光的过程中，使模具不变形及圆度。

METHODS: Normal human BMSCs were isolated and cultured by the whole bone marrow method. Cells of the third passage at 1×108/L were incubated on coverslip in a 6-well plate, and randomly divided into 3 groups: osteogenic induction group, which was added with primary medium and osteogenic inducer, supplemented with 10-8 mol/L dexamethasone, 10 mmol/L β-phosphoglycerol and 50 mg/L vitamin C; leptin osteogenic induction group was added with 50 nmol/l leptin in addition to osteogenic inducer. Cells in the blank control group were only treated with LG-DMEM containing 10% fetal bovine serum.

采用全骨髓法体外分离培养人骨髓间充质干细胞，传至第3代以1×108 L-1密度接种至预置盖玻片的6孔培养板中，设立3组：成骨诱导组添加原代培养液后，再加入含10-8 mol/L地塞米松、10 mmol/L β-磷酸甘油、50 mg/L维生素C的成骨诱导培养基；成骨+瘦素诱导组添加成骨诱导培养基后，再加入50 nmol/L瘦素；空白对照组仅加入含体积分数为10%胎牛血清的LG-DMEM培养液。

ALTIUM'S UNIQUE ECAD-MCAD INTEGRATION ENVIRONMENT* allows designers the opportunity to import whole design concepts and complete their PCB board shape and height/volume restrictions with complete confidence.

在ALTIUM独特的ECAD-MCAD一体化集成设计环境中，用户可以导入完整的设计概念，可靠地完成PCB板框外形和高度限制区域的定义。

ALTIUM独特的ECAD-MCAD一体化集成设计环境* allows designers the opportunity to import whole design concepts and complete their PCB board shape and height/volume restrictions with complete confidence.

在ALTIUM独特的ECAD-MCAD一体化集成设计环境中，用户可以导入完整的设计概念，可靠地完成PCB板框外形和高度限制区域的定义。

According to the wire electrode on the trajectory of the different forms of control, WEDM can be divided into three types:* is a copy-control, cutting their lines in advance to create the shape of the workpiece and the same mode *, When the rough machining parts and die at the same time * Clamping in the machine tool table, in the process of cutting wire electrode tightly * close to the edge of model for mobile track, thus cutting out the model * with the same shape and precision to work; another One is the optical tracking control, the cutting in line before the first parts in accordance with drawings by a certain ratio of enlarge depicts an electro-optical tracking maps, drawings will be processed when the machine electro-optical tracking placed on the stage, followed on the stage The first photo has to follow the ink line graphics track movement, and then through the use of electrical, mechanical linkage to control the machine tool table work together with the relative electrode wire Xiang Sixing do sports in order to cut out the pattern and shape of the workpiece to the same; a re - Is a digital process control, advanced digital automatic control technology, machine-driven process in accordance with the geometry of the workpiece before the parameters of good pre-processing CNC automatic completion of the processing, production do not look like without drawing board also plans to enlarge, in front of more than two Control in the form of higher precision processing and broad scope of application, at home and abroad for more than 95% of WEDM have been using digital technology.

根据对电极丝运动轨迹的控制形式不同，电火花线切割机床又可分为三种：一种是*模仿形控制，其在进行线切割加工前，预先制造出与工件形状相同的*模，加工时把工件毛坯和*模同时装夹在机床工作台上，在切割过程中电极丝紧紧地贴着*模边缘作轨迹移动，从而切割出与*模形状和精度相同的工件来；另一种是光电跟踪控制，其在进行线切割加工前，先根据零件图样按一定放大比例描绘出一张光电跟踪图，加工时将图样置于机床的光电跟踪台上，跟踪台上的光电头始终追随墨线图形的轨迹运动，再借助于电气、机械的联动，控制机床工作台连同工件相对电极丝做相似形的运动，从而切割出与图样形状相同的工件来；再一种是数字程序控制，采用先进的数字化自动控制技术，驱动机床按照加工前根据工件几何形状参数预先编制好的数控加工程序自动完成加工，不需要制作模样板也无需绘制放大图，比前面两种控制形式具有更高的加工精度和广阔的应用范围，目前国内外95％以上的电火花线切割机床都已采用数控化。

Spurting beam can control partial heat convex displayed on work roller during milling, than control strip plate flatness.

喷淋梁可以有效地控制在轧制过程中在工作辊上显示出来的局部热凸度，使带材局部的板型得到较好的控制。

5Mm thin shell tube of copper and tube sheet of Q235in central air conditioner .

对薄壁铜管和碳钢管板组合管头的焊接难点进行了分析，制定了合理的焊接工艺，并成功地应用于中央空调器冷凝器和蒸发器的制造中。

It can solve the problems such as inhomogeneous heating of different solder bumps in ball grid array, simultaneous heating of chip and carrier with solder ball, etc.,which have been increasingly serious with the worldwide application of lead-free solder.

该方法能够很好地解决由于无铅钎料的应用引起的日益严重的诸多问题，如球栅阵列中各钎料球受热不均匀和芯片基板与钎料球同时受热等。

First, many players have faults in their technique (grip, positioning, stance, basic strokes) that significantly limit their prospects for advancement.

第一个：很多选手在他们技术中有错误（抓板，站位，位置，基本技术），这样严重地限制了他们提高的期望。

Faults in their technique (grip, positioning, stance, basic strokes) that significantly limit their prospects for advancement.

第一个：很多选手在他们技术中有错误（抓板，站位，位置，基本技术），这样严重地限制了他们提高的期望。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。